Tire-builder&#39;s tool.



n. A. wl cox. TIRE BUILDEWS TOOL. APPLICATION F|LED MAR..22. 1915.

1 1 62,425, Patented Noy. 30, 1915.

INVENTOR HA2 A TTORNEY .ger

' ofthe'advantages of the invention.

[The invention Will-be readlly understood UNITED STARES PATENT. omen;

DANIEL A. wII-Icox, on GARD N our 'NEW YORK, assrenon TO Molten: & WRIGHT,-

A coarone'rron QFMIGHIGAN.

TIRE- IBUILDERS TOQL.

Specification of Letters Patent.

Patented Nov. 30, 1915,

Application filed March 22, 1915; Serial No. 16,238.

To all whom it may coneemia Be it known that I, DANIEL A. lViLcox, a citizen of the United States, and aresiw dent of Garden City, county, of,Nassau,

State of New York, have invented certain.-

new and-useful Improvements in Tire- Builders Tools, of which the following is a full, clear, and exactdescription.

, This invention relates to'tools for tire builders, more particularly to tools of that ,class known as stitchers and -..employ.ed "in conforming fabric to the configurationof a ring core in building a tire.

.An object of the present invention is to provide a stitcher having a Worlnng face curved to conform to the. configuration of the tire and provided with anti-friction'b'all's 'for contact with the tire, whereby as the tool .is' moved thereover the balls rotate freelpfiu'pon a great surface of the tire,'and thus asten the stitching operation while mostxi ectively performing the same with- I out's tr'etching or-distorting; the fabric.

.With the above andother objects in view the invention consists of certain novel deta1ls of construction and combinatlons of parts -hereinafter fully described and claimed, it being understood that various modifications maybe resorted to without departing from the scope or sacrificing any Figure 1 1s a longitudinal sectional view -through the tool with parts in elevation;

'Fig. 2 is an elevation of the'bitl partly in fsection.-.-"' i Referring now to the drawing in which like charactersof reference designate similar parts, the tool is shown to comprlse asupport 10 which may be o-f'any desired l 'mounted on an axle 12, secured at the ends shape and may be mounted or not as desired onany apparat-us, V I being in the nature of a concave faced spool I in-a fork of the support '10.

- The spool is preferably formed of a-numberof parts as shown bly; The spoolas such turns freely on the threadedfupon respective wire rings 20,'each In opera tion' wl1en the tool'is moved over 'the tire, each anti-friction ball generates a is built is power driven vduring the stitching andfa, bit 1 1' the latter distortion to closely conform to the v at 13,714, 1-5, 16, 17 and 18 to facilitate assembly and dis'assemof the rings belng rotatable'freely about the ax s of the spool, and the ti-friction' balls being individually turnab e upon'th'eir iespective rings as axes.

To further promote free turning of the various parts-of the-spool relatively to each other, the parts 13and 14' are-separated by ball bearings 21, andthe 15 together with the axle 12 areseparatedfrom each other by ball bearings 22, this con- 6 strnction being, of course, duplicated 0nthe .opposite side of the spool shown in elevation in Fig.1 and including the" parts 16, 17 and 18.

It will thus be seen that the spool 11 may turn as a unit on the axle '-l2, or the various sections of the spool may\iturn freely relatlvely to. each other; while the various annular series of anti-friction balls on their respective wire rings may turn as a unit in the ball race provided by the concave face .-of the spool, or may turn independently of operation is assured.

corresponding line upon the tire at all points on which the'fabric is pressed in close contact w1th the next underlying" layer of fabric, the balls and various parts of the blt or 510001 rotating freely as above described, whereby they exert no stretching distorting effect upon the fabric.

Since the ring core uponv which the tire down of the fabric the above described lines generated by the balls of the tool will mer into a continuous surface as the tool s moved transversely of the tire during he latters rotatlon past the tool, whereby the layersof fabric are closely united through 7 out inminimum time and pressedwithout g configuration of the-r ng core.

What is claimed is:

1. A tire builders tool embodying asup p port,;a bit securedthereto having a periphery curved-to conform to the curvature of 'a tire, and'forming a ball race, and anti-fric- -'5 cave-faced spool for contact With the .sur face of atire, and a plurality of seriesof anti-friction balls a l-ranged concentric with the axis of the spool and rotating upon the concave face'of the spool as a ball race.

10 3. Atire buildelfs tool embodying a support, a bit secured thereto comprising a concave faced spool formed of a plurality of I sections rotatab'ly mounted with] drespe ct to each other, ancla plurality of annular series of anti-friction balls beaded upon respective Wire rings encircling the concave face of. the spool, said rings being rotatable withv respect to each other and the individual- -balls of each-ring beingrotatable with respect to-each othen Signed at New York, bounty of New York and State of-Ne- York, this 13 day of March, 1915. v I

, DANIEL A. WVILCOX. 

